<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getGoodsList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getGoodsList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddPage">添加商品</el-button>
        </el-col>
      </el-row>
      <!-- 表格区域 -->
      <el-table :data="goodsList" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column prop="goods_name" label="商品名称"></el-table-column>
        <el-table-column
          prop="goods_price"
          label="商品价格"
          width="95px"
        ></el-table-column>
        <el-table-column
          prop="goods_weight"
          label="商品重量"
          width="70px"
        ></el-table-column>
        <el-table-column prop="add_time" label="创建时间" width="140px">
          <template slot-scope="scope">
            {{ scope.row.add_time | dateFormat }}
          </template>
        </el-table-column>
        <el-table-column label="操作" width="130px">
          <template slot-scope="scope">
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
            ></el-button>
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="removeGoods(scope.row.goods_id)"
            ></el-button>
          </template>
        </el-table-column>
      </el-table>
    </el-card>

    <!-- 分页区域 -->
    <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum"
      :page-sizes="[1, 2, 5, 10]"
      :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total"
      background
    >
    </el-pagination>
  </div>
</template>
<script>
export default {
  data() {
    return {
      //  查询参数对象
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10,
      },
      //商品列表
      goodsList: [],
      //总商品数
      total: 0,
    }
  },
  created() {
    this.getGoodsList()
  },
  methods: {
    //获取商品列表
    async getGoodsList() {
      const { data: res } = await this.$http.get('goods', {
        params: this.queryInfo,
      })
      if (res.meta.status != 200)
        return this.$message.console.error('获取商品列表失败')
      this.$message.success('获取商品列表成功')
      this.goodsList = res.data.goods
      this.total = res.data.total
    },
    //监听页面显示条数的改变
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getGoodsList()
    },
    //监听页码的变化
    handleCurrentChange(newNum) {
      this.queryInfo.pagenum = newNum
      this.getGoodsList()
    },
    //删除商品
    async removeGoods(id) {
      const confirmResult = await this.$confirm(
        '此操作将永久删除该用户, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning',
        }
      ).catch((err) => err)
      // 如果用户确认删除， 返回值是 confirm
      // 如果用户取消删除， 返回值是 cancel
      if (confirmResult != 'confirm') return this.$message.info('已取消删除')
      // console.log('确认删除')
      const { data: res } = await this.$http.delete('goods/' + id)
      if (res.meta.status != 200) return this.$message.error('删除商品失败')
      this.$message.success('删除商品成功！')
      this.getGoodsList()
    },
    //跳转到商品添加页
    goAddPage() {
      this.$router.push('/goods/add')
    },
  },
}
</script>
<style lang="less" scoped>
</style>